[IPV6] fix a mistake in ipv6_advmss() conversion

67cb96c0 · Hideaki Yoshifuji · 438fb92c · 67cb96c0
Commit 67cb96c0 authored Jul 04, 2003 by Hideaki Yoshifuji
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net/ipv6/route.c net/ipv6/route.c +2 -0

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--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -602,6 +602,8 @@ static int ipv6_get_mtu(struct net_device *dev)

 static inline unsigned int ipv6_advmss(unsigned int mtu)
 {
+	mtu -= sizeof(struct ipv6hdr) + sizeof(struct tcphdr);
+
 	if (mtu < ip6_rt_min_advmss)
 		mtu = ip6_rt_min_advmss;